PIC16F1937-E/ML Microchip Technology, PIC16F1937-E/ML Datasheet - Page 250
![IC PIC MCU FLASH 512KX14 44-QFN](/photos/6/81/68122/150-44-qfn_sml.jpg)
PIC16F1937-E/ML
Manufacturer Part Number
PIC16F1937-E/ML
Description
IC PIC MCU FLASH 512KX14 44-QFN
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheets
1.PIC16F722-ISS.pdf
(8 pages)
2.PIC16LF1933-ISS.pdf
(508 pages)
3.PIC16LF1933-ISS.pdf
(46 pages)
4.PIC16F1936-ISS.pdf
(2 pages)
5.PIC16F1936-ISS.pdf
(10 pages)
6.PIC16F1936-ISS.pdf
(40 pages)
7.PIC16F1936-ISS.pdf
(30 pages)
8.PIC16F1936-ISS.pdf
(12 pages)
9.PIC16LF1934-IML.pdf
(418 pages)
Specifications of PIC16F1937-E/ML
Program Memory Type
FLASH
Program Memory Size
14KB (8K x 14)
Package / Case
44-QFN
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
36
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 14x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
EUSART/MI2C/SPI
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
36
Number Of Timers
5
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005
Minimum Operating Temperature
- 40 C
On-chip Adc
14-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
- PIC16F722-ISS PDF datasheet
- PIC16LF1933-ISS PDF datasheet #2
- PIC16LF1933-ISS PDF datasheet #3
- PIC16F1936-ISS PDF datasheet #4
- PIC16F1936-ISS PDF datasheet #5
- PIC16F1936-ISS PDF datasheet #6
- PIC16F1936-ISS PDF datasheet #7
- PIC16F1936-ISS PDF datasheet #8
- PIC16LF1934-IML PDF datasheet #9
- Current page: 250 of 418
- Download datasheet (7Mb)
PIC16F193X/LF193X
21.2
The LCD module has 3 possible clock sources:
• F
• T1OSC
• LFINTOSC
The first clock source is the system clock divided by
256 (F
about 1 kHz output when the system clock is 8 MHz.
The divider is not programmable. Instead, the LCD
prescaler bits LP<3:0> of the LCDPS register are used
to set the LCD frame clock rate.
The second clock source is the T1OSC. This also gives
about 1 kHz when a 32.768 kHz crystal is used with the
Timer1 oscillator. To use the Timer1 oscillator as a
clock source, the T1OSCEN bit of the T1CON register
should be set.
The third clock source is the 31 kHz LFINTOSC, which
provides approximately 1 kHz output.
The second and third clock sources may be used to
continue running the LCD while the processor is in
Sleep.
FIGURE 21-2:
DS41364A-page 248
OSC
OSC
/256
F
Nominal = 31 kHz
LCD Clock Source Selection
OSC
T1OSC 32 kHz
/256). This divider ratio is chosen to provide
Crystal Osc.
LFINTOSC
÷256
LCD CLOCK GENERATION
(LCDCON<3:2>)
CS<1:0>
÷2
÷4
(LCDCON<1:0>)
Preliminary
LMUX<1:0>
Static
1/3,
1/2
1/4
Using bits CS<1:0> of the LCDCON register can select
any of these clock sources.
21.2.1
A 4-bit counter is available as a prescaler for the LCD
clock. The prescaler is not directly readable or writable;
its value is set by the LP<3:0> bits of the LCDPS register,
which determine the prescaler assignment and prescale
ratio.
The prescale values are selectable from 1:1 through
1:16.
(LCDPS<3:0>)
4-bit Prog
Prescaler
LP<3:0>
LCD PRESCALER
To Reference
Ladder Control
÷32
© 2008 Microchip Technology Inc.
5
(LCDCON<1:0>)
Ring Counter
LMUX<1:0>
÷1, 2, 3, 4
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